Cableway Cabin Corner Joint With Adhesive Form-Fit Anti-Twist Connection
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Solution Overview
Problem
Existing corner connections for cableway cabin support elements are complex, costly, and not adequately designed to withstand extreme weather conditions and high fatigue stress while ensuring a safe and durable connection.
Innovation Solution
A corner connection featuring a tubular support element with a hollow end and an angled connecting piece forming a form-fit plug-in connection, with gaps between the inner and outer surfaces for adhesive material to provide a secure and reliable bond, allowing for easy introduction of adhesive through holes or accessible ends, and optionally a U-shaped design for cable access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional corner connection pieces are inserted and screwed, riveted, or welded to support elements, then a stable supporting frame is achieved, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent replaces traditional mechanical connection methods (screws, rivets, welding) with a form-fit plug-in connection system. The connecting piece has a conical outer diameter that fits into a corresponding hollow end with a conical inner diameter, creating a secure mechanical interlock without requiring additional fastening elements. This substitution simplifies the connection process while maintaining structural stability.
Solution Approach 2:
The connecting piece is nested within the hollow end of the support element, with the conical outer surface of the connecting piece fitting inside the conical inner surface of the hollow end. This nesting arrangement creates a compact, integrated connection structure that eliminates the need for separate fastening components and reduces overall assembly complexity.
2Strength
If connecting pieces with constriction are used requiring adhesive filling through openings, then connection strength is improved, but numerous work steps are required making the process complicated and costly
Solution Approach 1:
The patent extracts the adhesive application step from the connection process by designing the form-fit plug-in connection to inherently provide sufficient connection strength. The conical geometry creates a large surface area for mechanical interlocking, eliminating the need for additional adhesive filling operations and associated openings, thereby simplifying manufacturing.
Solution Approach 2:
The conical form-fit connection design is self-sufficient in providing the necessary connection strength through its geometric interlocking mechanism. The expanding conical surfaces create friction and mechanical resistance that inherently secure the connection without requiring external adhesive materials or additional processing steps.
3Strength
If support elements are exposed on the outer surface of the cabin, then structural support is provided, but they are particularly exposed to extreme weather conditions and fatigue stress
Solution Approach 1:
The patent applies beforehand cushioning by designing the form-fit plug-in connection with conical surfaces that distribute mechanical and thermal stresses evenly across the interface. This pre-engineered stress distribution protects the connection point from the harmful effects of extreme weather conditions and fatigue stress that the exposed support elements inevitably encounter.
Solution Approach 2:
The connection system effectively creates a composite structure where the connecting piece and support element work together as an integrated unit. The conical interface combines the mechanical properties of both components to resist extreme weather conditions and fatigue stress, creating a connection that is stronger and more resilient than either component alone.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables rapid, secure, and cost-effective manufacturing of corner connections that withstand extreme conditions, ensuring a safe and durable cableway cabin structure with enhanced anti-twist protection and easy maintenance access.
Implementation Method 1
An adhesive material is provided in the gap between the oppositely situated sides of the hollow end and the connecting piece. The inner surface of the hollow end and the outer surface of the connecting piece thus form bonding surfaces of the corner connection, and fixedly bond the support element and the connecting element to one another
Implementation Method 2
The connecting piece of the connecting element is insertable into the hollow end of the support element in a form-fitting manner. The hollow end and the connecting piece thus form a form-fit plug-in connection
Data Source
AI summary
A corner connection is provided between support elements of a cableway cabin. The corner connection has a support element (1), designed as an elongated strut having a hollow end (2), and an angled connecting element (3) having a connecting piece (4). The connecting piece (4) is insertable into the hollow end (2) of the support element (1) in a form-fitting manner. An inner shape of the hollow end (2) and an outer shape of the connecting piece (4) have an angular design. At least two oppositely situated surfaces of the hollow end (2) and the connecting piece (4) are provided in a form-fitting manner in such a way that a gap (14, 14′) remains between the inner surface (10, 10′) of the hollow end (2) and the outer surface (9, 9′) of the connecting piece (4), wherein an adhesive material is provided in the gap (14, 14′).